Cock



HL' GAY cocK Filed July 24. 1925 JVZ/ mj INVENTOR.

A TToRNEYs. Y

Patented Jan. 5, 1926.

UNITED STATES HARRY GRAY, OF HOUSTON, TEXAS.

COCK.

Application filed July 24, 1923.

To all whom t may concern.'

Be it known that I, HARRY GRAY, a citizen of the United States, residing at Houston, Harris County, Texas, have invented a certain new and useful Improvement in Cocks. of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to cocks and has particular application to the valve cocks employed in the dispensing of liquids.

It is an object of my invention to provide a cock which may be easily and cheaply manufactured, so that it may be made in quantities and, if desired, may be used but a few times and then thrown away.

Another object is to provide a packing for the valve which will be effective to prevent leakage and yet simple in construction. It is also desired to so mount the packing as to prevent its rotation wit-h the valve plug.

Another object is to provide an eective means of retaining the valve plug in operative position.

Referring to the drawing herewith wherein like numerals of reference are applied to like parts in all the views; Fig. 1 is a top plan view of the invention. Fig. 2, a side elevation, certain parts being broken away in central longitudinal section. Fig. 3 is a transverse section on the plane 3-3 of Fig. 2. Fig. 4 is a bottom view. Fig. 5 is a section taken on the plane 5-5 of Fig. 6. Fig. 6 is a central longitudinal section of the valve housing of a slightly different embodiment showing the va ve plug in elevation. Fig. 7 is a transverse section on the plane 7-7 of Fig. 6.

My invention has particular application to cocks or spigots which are employed on barrels or other large containers of liquids for shipment. In such cases the cock is used to discharge the contents of the container as said contents are used, but when the container is empty, it is contemplated that the cock may, if desired, be thrown awa or destroyed. My invention is not limite entirely for this use, however, as it is obvious that it may have a wide application in various situations.

In the embodiment disclosed in Figs. 1 to 4, inclusive, there is a. tubular open ended casing 8. the main body of which is shown as cylindrical, the attaching end is reduced slightly in diameter at 9 both externally and Serial No. 653,448.

internally and again at 10 where it is threaded for screwing within an opening or bung of a container to be emptied.

Internally there is a central chamber 11 60 having a lateral opening 12 to provide an outlet, shown in the diawing as formed without a nozzle. As seen in Fig. 8, the chamber 1l has its walls recessed somewhat 011 one side at 15 opposite the opening 12, 65 to provide a seat for a flat strip of packing material 13. At each longitudinal side of the recessed portion 15 the recess terminates in a shoulder 14 against which the packing strip contacts. This serves to hold the packing in position preventing rotative movement thereof as the valve is moved.

At the outer end of the casing 8, the interior diameter is slightly increased to seat a packing rin@ 16. At the inner end of the chamber within the reduced portion 9, is a seat for a packing ring 17, which is smaller in diameter than is the chamber 11.

A valve plug 18 tits within the casing and its lining of packing and its open inner end 19 yhas a bearing within the packing ring 17. The outer closed end 2O of the plug extends outside the casing and has an operating handle 22 thereon. A radially extending flange or shoulder 23 on the plug rests against the outer packing ring 16.

The intermediate portion of the plug within the chamber has its walls thickened eX- ternally on one side at 24, the opposite side 25 being comparatively thin. The thickened wall has an outlet opening 26 therein which is adapted to be rotated into registration with the opening 12 in the casing.

The valve plug is retained in posit-ion in the casing by lugs 29 projecting from the outer end longitudinally of the casing. There are at least two of these lugs 29, as seen in Fig. 1. They are made of soft metal and when the plug is in position said lugs are bent inwardly to fit snugly against the rounded outer end of the plug, allowing it to rotate but preventing it from movement longitudinally.

In the operation of the invention the device is assembled as disclosed in the draw- 105 ing, and is secured within the barrel or other container holding liquid which is to be dispensed. The valve is closed by turning the valve plug so that the thickened eccentric side thereof having the openin 26 therein' is 110 held tightly against the pac ing strip 13. Thi@ will prevent leakage through the opening 2G therein. On the side of the plug toward: the opening 12 in the casing, the Vchamber is not packed, but there is the lower packing ring 17 and the upper packing ring 16 which close the space about the plug above and below the opening so that no leakage may occur. lVhen the plug is forced within its seat in the. casing, the shoulder Q3 bearing against the packing ring 16 will serve to compress and expand said ring, and a lower shoulder 30 on the plug also acts to compress the packing ring 17. Then it is desired to empty a portion oi'l the contents from the container the plug is turned so that the opening Q6 registers with the opening 12 in the casing, and thus allows the liquid to escape. lt -is contemplated that the openings 2G and 1Q will be of approXimately the saine area and may, if desired, be made or the same area as is the interior diameter of the casing at 10. This allows the lull volume of liquid which may find outlet tl'irough the valve casing, to flow unimpeded through the outlet oli the valve.

ln the embodimentshown in Fi gs. 5, 6 and 7, the main tentures ol the valve are4 the same as in the cmbcdinent inst described.

As shown in the drawing, however, the

packing ring 1T is son'iewhat narrower in width and projects inwardly from the lower end ol" the chamber 11 so that the lower end of the plug 18 will contact therewith. At the outer end ot the casing the packing ring 1G ma i also be made somewhat narrower than in the previous embodiment, thus providing a cock somewhat shorter in length than in the previous embodiment.

The means by which the valve plug is maintained in its operative position in this embodiment is materially7 diilerent than that disclosed in the lirst embodiment. The outer end oi the valve casing is slightly enlarged in diameter and is undercut at 31 to provide a groove. This groove has its upper wall inclined upwardly from one side to the other, as shown at 32, thus providing an inclined plane against which the plug may operate, as will be presently described.

The plug 18 is formed on its outer end with a laterally extending resilient flange This flange has an upper extension 3l separated from the inner portion by a slot 35, one of these extensions being formed on each side of the plug as shown in Fig. 5. The extension projects about half way around the plug, and has at its end an outwardly projecting portion 3G having a forward shoulder 37 thereon. The groove 31 in which the llange projects has at diametrical opposite points inwardly extending bosses 3S to limit the movement of the resilient flange or extension, 34. As the valve in'this embodiment is made of resilient material, it is necessary, in inserting the plug within the casing, to spring the lugs 36 at the ends of the resilient member 34 inwardly, so as to get it by the constricted opening 39 in the end or the casing. Then it is then released'it will by its own resiliency spring outwardly to fit within the groove 31 and may then be rotated. Due to the tact that the wall 32 or the groove 31 is inclined, the rotation ol the valve will act as a screw to throw the plug resiliently downward so as to compress the packing rings 16 and 17, and thus hold them in eX- panded position so as to maintain the valve fluid tight. rl"he handle 2Q in this embodiment is spaced outwardly away from the body ot the plug by means of a neck or handle, l0.

ln the operation ot' this embodiment of my inif'cntion, the parts are assembled as shown, and when the plugl is inserted within 4the casing the resilient member 3a is compressed inwardly so as to 'torcer it through the opening 39, and is then in position to be rotated g and when rotated so that the eccentric portion 2-1 is held against the packing strip 13, he resilient extension 34.- will also act as a screw, forcing the plug inwardly so as to compress the ypacking rings 16 and 17, making the joint absolutely tight. lVhen it is desired to open the valve the plug will be rotated so as to bring the opening 26 into registration with the opening 12, and in so rotating the plug the shoulder 37 will contact with the shoulder of the boss 28 when the openings are exactly registering. The packing will be somewhat released from compression, but no leakage will occur, due to the lact that the fluid linds a ready opening through the outlet in the valve.

1n the construction o these two embodiments et my invention, it is contemplated that the different parts may be made quickly and cheaply, so that, it desired, the valve may be thrown away when the container has Leen entirely emptied. This can be best accomplished in the embodiment shown in Figs, to e, wherein the working parts may all be made ot' soit metal and may be die cast or otherwise cheaply formed. The manner in which the valve is packed to pre vent leakage will be entirely eilective, even though the valve may be repeatedly used before it is discarded. The securing of the valve plug in position within the casing by meins of the lugs 29 provides a retaining means which may be very readily manipulated, and in a temporary valve of this kind, will be entirely eective.

ln the embodiment shown in Figs. 5 to 'T inclusive, the material may best be of some resilient metal, so that the best action ot' the retaining means 3l may be accomplished. This valve has the advantage, however, that the retaining means not only prevents the removal of the plug from the casing, but also serves to compress the packing rings so that when the valve is closed the leakage about the plug is absolutely prevented. T e further objects and advantages of my invention will be apparent to one skilled in the art, Without further description.

What I claim as new and desire to protec.` by Letters Patent is:

l. In a cock, a tubular casing one end of which is threaded for attachment within a container, a central chamber having an outlet opening on one side thereof, the opposite side being recessed, packing in said recessed portion, a hollow valve plug in said chamber having its wall thickened on one side whereby it is made eccentric within said chamber, there being an outlet openin in said thickened wall, packing between sald plug and said casing above and below said eccentric portion and means to retain said valve plug removably in said casing.

2. In a cock, a tubular casing one end of which is threaded for attachment within a container, said casing having a lateral outlet opening, a central chamber having its walls recessed part way round to receive a strip of packing material, packing rings above and below said chamber, a valve plug in said casing having its walls thickened on one side within said chamber whereby it fits eccentrically therein, said thickened wall having an opening therein adapted to register with the outlet in said casing.I and means to retain said plug in said casing.

3. In a cock, an open ended tubular cas ing having a lateral outlet opening therein, packing rings in said casing adjacent the upper and lower ends thereof, a chamber between said rings having its walls recessed but part way round the same, a strip of packing in said recess, a hollow valve plug in said casing having its walls thickened on one side Within said chamber, whereby it fits eccentrically in said chamber, there being an opening in said plug throu h the thickened wall, means to rotate sai plug and means to retain said plug in position in said casing.

4. In a cock, an open ended casing having a lateral outlet-in one side thereof, packing rings in said casing adjacent the upper and lower ends thereof, a chamber between said rings, a strip of packing material extending part way around said chainber opposite said opening and held against rotation therein, a valve plug having its outer end closed itting axially within said casing the outer face of said plug within said chamber being eccentric and having an opening therein, and means to rotate said plug.

5. In a cock, a tubular casing having a lateral outlet, a valve plug extending longitudinally through said casing having an opening adapted to register with said outlet when said plug is rotated, packing means in said casing, and means to retain said plug removably in said casing comprising soft metal lugs on said casing bent around the said plug and fitting closely against the closed outer end thereof, and adapted to be bent back when said plug is removed.

(i. In a cock, a tubular casing having an axial inlet and a lateral outlet, a hollow plug closed at one end and rotatable in said casing with an opening therein adapted to register with said outlet when said plug is rotated into open position, a packing strip on the interior side of said casing opposite said opening and an eccentric face on said plug adapted to fit closel against said strip only when said valve is clrosed.

In testimony whereof, I hereunto affix my signature, this the 20th day of July, A. D. 1923.

HARRY GRAY. 

